HK1125169A1 - Meter electronics and methods for verification diagnostics for a flow meter - Google Patents

Meter electronics and methods for verification diagnostics for a flow meter

Info

Publication number
HK1125169A1
HK1125169A1 HK09102471.5A HK09102471A HK1125169A1 HK 1125169 A1 HK1125169 A1 HK 1125169A1 HK 09102471 A HK09102471 A HK 09102471A HK 1125169 A1 HK1125169 A1 HK 1125169A1
Authority
HK
Hong Kong
Prior art keywords
meter
methods
electronics
flow meter
diagnostics
Prior art date
Application number
HK09102471.5A
Inventor
Matthew Joseph Rensing
Andrew Timothy Patten
Timothy J Cunningham
Mark James Bell
Original Assignee
Micro Motion Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Micro Motion Inc filed Critical Micro Motion Inc
Publication of HK1125169A1 publication Critical patent/HK1125169A1/en

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
    • G01F1/76—Devices for measuring mass flow of a fluid or a fluent solid material
    • G01F1/78—Direct mass flowmeters
    • G01F1/80—Direct mass flowmeters operating by measuring pressure, force, momentum, or frequency of a fluid flow to which a rotational movement has been imparted
    • G01F1/84—Coriolis or gyroscopic mass flowmeters
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
    • G01F1/76—Devices for measuring mass flow of a fluid or a fluent solid material
    • G01F1/78—Direct mass flowmeters
    • G01F1/80—Direct mass flowmeters operating by measuring pressure, force, momentum, or frequency of a fluid flow to which a rotational movement has been imparted
    • G01F1/84—Coriolis or gyroscopic mass flowmeters
    • G01F1/845—Coriolis or gyroscopic mass flowmeters arrangements of measuring means, e.g., of measuring conduits
    • G01F1/8468—Coriolis or gyroscopic mass flowmeters arrangements of measuring means, e.g., of measuring conduits vibrating measuring conduits
    • G01F1/8472—Coriolis or gyroscopic mass flowmeters arrangements of measuring means, e.g., of measuring conduits vibrating measuring conduits having curved measuring conduits, i.e. whereby the measuring conduits' curved center line lies within a plane
    • G01F1/8477—Coriolis or gyroscopic mass flowmeters arrangements of measuring means, e.g., of measuring conduits vibrating measuring conduits having curved measuring conduits, i.e. whereby the measuring conduits' curved center line lies within a plane with multiple measuring conduits
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
    • G01F1/76—Devices for measuring mass flow of a fluid or a fluent solid material
    • G01F1/78—Direct mass flowmeters
    • G01F1/80—Direct mass flowmeters operating by measuring pressure, force, momentum, or frequency of a fluid flow to which a rotational movement has been imparted
    • G01F1/84—Coriolis or gyroscopic mass flowmeters
    • G01F1/8409—Coriolis or gyroscopic mass flowmeters constructional details
    • G01F1/8413—Coriolis or gyroscopic mass flowmeters constructional details means for influencing the flowmeter's motional or vibrational behaviour, e.g., conduit support or fixing means, or conduit attachments
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
    • G01F1/76—Devices for measuring mass flow of a fluid or a fluent solid material
    • G01F1/78—Direct mass flowmeters
    • G01F1/80—Direct mass flowmeters operating by measuring pressure, force, momentum, or frequency of a fluid flow to which a rotational movement has been imparted
    • G01F1/84—Coriolis or gyroscopic mass flowmeters
    • G01F1/8409—Coriolis or gyroscopic mass flowmeters constructional details
    • G01F1/8431—Coriolis or gyroscopic mass flowmeters constructional details electronic circuits
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
    • G01F1/76—Devices for measuring mass flow of a fluid or a fluent solid material
    • G01F1/78—Direct mass flowmeters
    • G01F1/80—Direct mass flowmeters operating by measuring pressure, force, momentum, or frequency of a fluid flow to which a rotational movement has been imparted
    • G01F1/84—Coriolis or gyroscopic mass flowmeters
    • G01F1/8409—Coriolis or gyroscopic mass flowmeters constructional details
    • G01F1/8436—Coriolis or gyroscopic mass flowmeters constructional details signal processing
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F15/00—Details of, or accessories for, apparatus of groups G01F1/00 - G01F13/00 insofar as such details or appliances are not adapted to particular types of such apparatus
    • G01F15/02—Compensating or correcting for variations in pressure, density or temperature
    • G01F15/022—Compensating or correcting for variations in pressure, density or temperature using electrical means
    • G01F15/024—Compensating or correcting for variations in pressure, density or temperature using electrical means involving digital counting
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F25/00—Testing or calibration of apparatus for measuring volume, volume flow or liquid level or for metering by volume
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F25/00—Testing or calibration of apparatus for measuring volume, volume flow or liquid level or for metering by volume
    • G01F25/10—Testing or calibration of apparatus for measuring volume, volume flow or liquid level or for metering by volume of flowmeters
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N9/00—Investigating density or specific gravity of materials; Analysing materials by determining density or specific gravity
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N9/00—Investigating density or specific gravity of materials; Analysing materials by determining density or specific gravity
    • G01N9/002—Investigating density or specific gravity of materials; Analysing materials by determining density or specific gravity using variation of the resonant frequency of an element vibrating in contact with the material submitted to analysis

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Biochemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Signal Processing (AREA)
  • Engineering & Computer Science (AREA)
  • Measuring Volume Flow (AREA)
HK09102471.5A 2005-09-19 2009-03-16 Meter electronics and methods for verification diagnostics for a flow meter HK1125169A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/US2005/033285 WO2007040468A1 (en) 2005-09-19 2005-09-19 Meter electronics and methods for verification diagnostics for a flow meter

Publications (1)

Publication Number Publication Date
HK1125169A1 true HK1125169A1 (en) 2009-07-31

Family

ID=36294845

Family Applications (1)

Application Number Title Priority Date Filing Date
HK09102471.5A HK1125169A1 (en) 2005-09-19 2009-03-16 Meter electronics and methods for verification diagnostics for a flow meter

Country Status (11)

Country Link
US (2) US7865318B2 (en)
EP (2) EP1949046B1 (en)
JP (1) JP4836210B2 (en)
KR (3) KR20130025951A (en)
CN (1) CN101268340B (en)
AR (2) AR055637A1 (en)
AU (1) AU2005336982B2 (en)
BR (2) BRPI0520555B1 (en)
CA (1) CA2622976C (en)
HK (1) HK1125169A1 (en)
WO (1) WO2007040468A1 (en)

Families Citing this family (66)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7865318B2 (en) * 2005-09-19 2011-01-04 Micro Motion, Inc. Meter electronics and methods for verification diagnostics for a flow meter
US7689372B2 (en) * 2006-12-13 2010-03-30 Abb Patent Gmbh Process for operating a measurement device of the vibration type
JP4909124B2 (en) * 2007-03-02 2012-04-04 キヤノン株式会社 Information processing apparatus, information processing method, and computer program
US8278942B2 (en) 2008-04-01 2012-10-02 Phase Dynamics, Inc. Self-checking analyzer method and system using reflected power/insertion loss
DE102008050115A1 (en) 2008-10-06 2010-04-08 Endress + Hauser Flowtec Ag In-line measuring device
DE102008050113A1 (en) * 2008-10-06 2010-04-08 Endress + Hauser Flowtec Ag In-line measuring device
DE102008050116A1 (en) 2008-10-06 2010-04-08 Endress + Hauser Flowtec Ag In-line measuring device
DE102009002942A1 (en) 2009-05-08 2010-11-11 Endress + Hauser Flowtec Ag A method of determining a meter tube tube wall thickness of a Coriolis flowmeter
JP4911219B2 (en) 2009-11-10 2012-04-04 横河電機株式会社 Coriolis mass flow meter
DE102009046839A1 (en) 2009-11-18 2011-05-19 Endress + Hauser Flowtec Ag Measuring system with a two parallel flowed measuring tubes having pipe assembly and method for monitoring thereof
CN102686985B (en) 2009-12-31 2015-04-01 恩德斯+豪斯流量技术股份有限公司 Measuring system comprising a vibration-type transducer
CN101750136B (en) * 2009-12-31 2012-07-25 北京航空航天大学 Dry calibration method of electromagnetic flow meter based on intraductal magnetic field simulation numerical calculation
DE102010000761A1 (en) 2010-01-11 2011-07-28 Endress + Hauser Flowtec Ag Measuring system i.e. measuring device and/or Coriolis or mass flow measuring device for medium e.g. gas and/or liquid, flowing in pipeline, has transmitter electronics generating measured value
JP4952820B2 (en) 2010-05-13 2012-06-13 横河電機株式会社 Coriolis flow meter
US8909480B2 (en) * 2010-10-14 2014-12-09 INOVA, Ltd. Seismic data filtering based on vibrator-coupled ground model
DE102011006919A1 (en) 2011-04-07 2012-10-11 Endress + Hauser Flowtec Ag Method for trimming a pipe
DE102011006971A1 (en) 2011-04-07 2012-10-11 Endress + Hauser Flowtec Ag Vibration-type transducers and method of making same
DE102011006997A1 (en) 2011-04-07 2012-10-11 Endress + Hauser Flowtec Ag Frequency adjustment method for a pipe arrangement
EP2732249B1 (en) * 2011-07-13 2020-03-18 Micro Motion, Inc. Vibratory meter and method for determining resonant frequency
DE102011086395A1 (en) * 2011-11-15 2013-05-16 Endress + Hauser Flowtec Ag A method of monitoring vibration characteristics in a Coriolis flowmeter
KR101827459B1 (en) 2012-01-10 2018-02-08 마이크로 모우션, 인코포레이티드 Field service device and method for facilitating a processing system replacement in a vibratory flowmeter
CN102589659B (en) * 2012-03-16 2014-05-28 西安东风机电有限公司 Field measuring system with Coriolis mass flow meter and detection method of field measuring system
CN104204735B (en) 2012-04-03 2017-12-29 恩德斯+豪斯流量技术股份有限公司 Transducer of vibration type
DE102012102947B4 (en) 2012-04-03 2023-12-21 Endress + Hauser Flowtec Ag Vibration type transducer
US9658097B2 (en) 2012-05-11 2017-05-23 Bristol, Inc. Systems and methods to initiate a verification test within a flow meter via a flow computer
DE102012011934B4 (en) * 2012-06-18 2014-07-10 Krohne Messtechnik Gmbh Method for operating a resonance measuring system and related resonance measuring system
AU2012388776A1 (en) * 2012-08-28 2015-03-05 Halliburton Energy Services, Inc. Sensor characterization apparatus, methods, and systems
RU2602733C1 (en) * 2012-11-29 2016-11-20 Майкро Моушн, Инк. Detection of change of cross section area of flow-measuring fluid pipeline of vibration meter by determining rigidity of transverse mode
RU2619829C1 (en) * 2013-04-18 2017-05-18 Майкро Моушн, Инк. Test of sensing element for vibration meter
DE102013106155A1 (en) 2013-06-13 2014-12-18 Endress + Hauser Flowtec Ag Measuring system with a pressure device and method for monitoring and / or checking such a pressure device
DE102013106157A1 (en) 2013-06-13 2014-12-18 Endress + Hauser Flowtec Ag Measuring system with a pressure device and method for monitoring and / or checking such a pressure device
KR101948260B1 (en) 2013-06-14 2019-05-10 마이크로 모우션, 인코포레이티드 Vibratory flowmeter and method for meter verification
AU2014379464B2 (en) * 2014-01-24 2017-03-09 Micro Motion, Inc. Vibratory flowmeter and methods and diagnostics for meter verification
RU2665350C1 (en) * 2014-10-21 2018-08-29 Майкро Моушн, Инк. Device for application of a variable algorithm for a vibration flowmeter and a related method
US9689736B2 (en) * 2014-10-31 2017-06-27 Invensys Systems, Inc. Method to provide a quality measure for meter verification results
US10605647B2 (en) 2015-07-27 2020-03-31 Micro Motion, Inc. Vibratory flowmeter test tones without ramp time
CN108139261B (en) * 2015-10-21 2020-10-20 高准公司 In situ transducer calibration
EP3258239A1 (en) * 2016-06-13 2017-12-20 INL - International Iberian Nanotechnology Laboratory Method for validating a resonator
JP6739616B2 (en) * 2016-07-20 2020-08-12 マイクロ モーション インコーポレイテッド Method for Performing Temperature Compensation for Maximum Sensor Current and Test Tone Amplitude During Meter Verification
EP3548850B1 (en) * 2016-11-30 2021-03-31 Micro Motion Inc. Temperature compensation of a test tone used in meter verification
KR102352194B1 (en) * 2017-06-14 2022-01-21 마이크로 모우션, 인코포레이티드 Frequency spacing to prevent intermodulation distortion signal interference
RU2731028C1 (en) 2017-06-14 2020-08-28 Майкро Моушн, Инк. Band-rejection filter in vibratory flow meter
EP3665446B1 (en) * 2017-08-08 2022-09-28 Micro Motion, Inc. Flowmeter false totalizing elimination device and method
EP3676577B1 (en) * 2017-08-30 2022-12-14 Micro Motion, Inc. Standards traceable verification of a vibratory meter
CN111033191B (en) * 2017-08-30 2022-08-02 高准有限公司 Detecting and identifying changes in a vibratory meter
DE102017131199A1 (en) 2017-12-22 2019-06-27 Endress + Hauser Flowtec Ag Coriolis mass flow meter
JP7024466B2 (en) * 2018-02-05 2022-02-24 横河電機株式会社 Coriolis flowmeter, time prediction system, and time prediction method
SG11202100866WA (en) * 2018-07-30 2021-02-25 Micro Motion Inc Meter electronics and methods for verification diagnostics for a flow meter
CA3109274C (en) * 2018-08-13 2023-06-27 Micro Motion, Inc. Determining a decay characteristic of a meter assembly
US11852516B2 (en) 2018-08-13 2023-12-26 Micro Motion, Inc. Method to determine when to verify a stiffness coefficient of a flowmeter
EP3837502B1 (en) * 2018-08-13 2023-06-14 Micro Motion, Inc. Determining a damping of a meter assembly
WO2020076284A1 (en) * 2018-10-08 2020-04-16 Micro Motion, Inc. Cleaning and detecting a clean condition of a vibratory meter
DE102018133117A1 (en) 2018-12-20 2020-06-25 Endress+Hauser Flowtec Ag Coriolis mass flow meter
US20220099543A1 (en) 2018-12-20 2022-03-31 Endress+Hauser Flowtec Ag Coriolis mass flow meter
WO2020126282A1 (en) 2018-12-20 2020-06-25 Endress+Hauser Flowtec Ag Coriolis mass flow meter
EP3899448B1 (en) 2018-12-21 2024-03-27 Endress + Hauser Flowtec AG Coriolis mass flowmeter with magnetic field detector
DE102019133610A1 (en) 2019-12-09 2021-06-10 Endress + Hauser Flowtec Ag Vibronic measuring system for measuring a mass flow of a fluid to be measured
US20240210227A1 (en) * 2020-03-20 2024-06-27 Endress+Hauser Flowtec Ag Method for operating a coriolis measuring device
DE102020111127A1 (en) 2020-04-23 2021-10-28 Endress+Hauser Flowtec Ag Method of monitoring a Coriolis mass flow sensor
US20210333219A1 (en) * 2020-04-27 2021-10-28 Mpi Corporation Method of determining distance between probe and wafer held by wafer probe station
US20230341248A1 (en) * 2020-07-14 2023-10-26 Micro Motion, Inc. Using a stiffness measurement to compensate a fluid property measurement
DE102020127382A1 (en) 2020-10-16 2022-04-21 Endress+Hauser Flowtec Ag Procedure for checking a vibronic measuring system
DE102020132949A1 (en) * 2020-12-10 2022-06-15 Endress+Hauser Flowtec Ag Method for identifying deposits in a process plant using a Coriolis mass flow sensor
DE102022112523A1 (en) 2022-05-18 2023-11-23 Endress+Hauser Flowtec Ag Vibronic measuring system
DE102022116111A1 (en) 2022-06-28 2023-12-28 Endress+Hauser Flowtec Ag Vibronic measuring system
DE102023101930A1 (en) 2022-12-02 2024-06-13 Endress+Hauser Flowtec Ag Procedure for checking and/or (re-)commissioning a modular measuring system

Family Cites Families (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3872609D1 (en) 1987-06-12 1992-08-13 Joerg Dual VISCOSIMETER.
JP2793699B2 (en) * 1990-06-20 1998-09-03 トキコ株式会社 Mass flow meter
US5347874A (en) * 1993-01-25 1994-09-20 Micro Motion, Incorporated In-flow coriolis effect mass flowmeter
US5579243A (en) * 1994-09-20 1996-11-26 Lucent Technologies Inc. Modal parameter estimation for stable filters
CN1074539C (en) * 1995-09-14 2001-11-07 株式会社椭圆 Coriolis flowmeter
US5926096A (en) * 1996-03-11 1999-07-20 The Foxboro Company Method and apparatus for correcting for performance degrading factors in a coriolis-type mass flowmeter
FR2754898B1 (en) 1996-10-18 2000-08-18 Comex Technologies METHOD AND DEVICE FOR MEASURING THE QUANTITY OF A DEPOSIT LIKELY TO HAVE FORMED IN A FLUID TRANSPORT PIPE
US6092409A (en) 1998-01-29 2000-07-25 Micro Motion, Inc. System for validating calibration of a coriolis flowmeter
US6360579B1 (en) 1999-03-26 2002-03-26 Micro Motion, Inc. Flowmeter calibration system with statistical optimization technique
US6505131B1 (en) * 1999-06-28 2003-01-07 Micro Motion, Inc. Multi-rate digital signal processor for signals from pick-offs on a vibrating conduit
US6347293B1 (en) 1999-07-09 2002-02-12 Micro Motion, Inc. Self-characterizing vibrating conduit parameter sensors and methods of operation therefor
US6678624B2 (en) 2001-08-29 2004-01-13 Micro Motion, Inc. Apparatus, methods and computer program products for generating mass flow calibration factors using a normal modal dynamic characterization of a material-containing conduit
US6782333B2 (en) 2002-05-31 2004-08-24 Micro Motion, Inc. Meter calibration system and apparatus
JP2004052516A (en) 2002-07-22 2004-02-19 Daiyuki Mori Picking preventive cover
US20050072234A1 (en) * 2003-05-20 2005-04-07 Weidong Zhu System and method for detecting structural damage
KR101011809B1 (en) 2003-09-29 2011-02-07 마이크로 모우션, 인코포레이티드 Diagnostic apparatus and methods for a coriolis flow meter
BRPI0318552B1 (en) * 2003-10-22 2016-05-31 Micro Motion Inc diagnostic apparatus and methods for a coriolis flowmeter
MXPA06014653A (en) * 2004-06-22 2007-03-26 Micro Motion Inc Meter electronics and method for detecting a residual material in a flow meter assembly.
KR20140063884A (en) * 2005-03-29 2014-05-27 마이크로 모우션, 인코포레이티드 Coriolis flow meter and method for determining flow characteristics
US7865318B2 (en) * 2005-09-19 2011-01-04 Micro Motion, Inc. Meter electronics and methods for verification diagnostics for a flow meter
KR101018401B1 (en) * 2005-10-03 2011-02-28 마이크로 모우션, 인코포레이티드 Meter electronics and methods for determining one or more of a stiffness coefficient or a mass coefficient

Also Published As

Publication number Publication date
CN101268340B (en) 2010-11-03
JP4836210B2 (en) 2011-12-14
US20080281535A1 (en) 2008-11-13
EP2103913B1 (en) 2016-11-30
EP2103913A3 (en) 2009-10-07
AU2005336982A1 (en) 2007-04-12
AR084877A2 (en) 2013-07-10
US8280651B2 (en) 2012-10-02
KR20110110875A (en) 2011-10-07
KR20130025951A (en) 2013-03-12
BR122017014865B1 (en) 2018-07-24
AR055637A1 (en) 2007-08-29
BRPI0520555B1 (en) 2017-11-14
BRPI0520555A2 (en) 2009-05-12
EP1949046B1 (en) 2016-12-14
CA2622976A1 (en) 2007-04-12
EP2103913A2 (en) 2009-09-23
KR20100061569A (en) 2010-06-07
US7865318B2 (en) 2011-01-04
CN101268340A (en) 2008-09-17
AU2005336982B2 (en) 2011-03-17
WO2007040468A1 (en) 2007-04-12
KR101165043B1 (en) 2012-07-13
EP1949046A1 (en) 2008-07-30
US20110178738A1 (en) 2011-07-21
CA2622976C (en) 2013-05-07
JP2009509163A (en) 2009-03-05

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